400 m, Women
| Competition | 2003 Pan American Games |
|---|---|
| Venue |
Santo Domingo
 DOM
|
| Held | 7 – 8 August 2003 |
| Status | Medal |
| Competitors | 17 |
| Countries | 11 |
| Pos | Athlete(s) | Country | Round 1 | Final | ||
|---|---|---|---|---|---|---|
| 🥇 | Ana Guevara |  MEX |
52.22 (1 h1) |
50.36 (1 F) |
||
| 🥈 | Hazel-Ann Regis |  GRN |
52.21 (1 h2) |
51.56 (2 F) |
||
| 🥉 | Aliann Pompey |  GUY |
52.23 (1 h3) |
52.06 (3 F) |
||
| 4 | Libania Grenot |  CUB |
52.37 (3 h2) |
52.23 (4 F) |
||
| 5 | Me'Lisa Barber |  USA |
52.62 (2 h1) |
52.53 (5 F) |
||
| 6 | Novlene Williams-Mills |  JAM |
52.76 (2 h3) |
52.83 (6 F) |
||
| 7 | Moushaumi Robinson | USA |
52.23 (2 h2) |
52.96 (7 F) |
||
| 8 | Michelle Burgher | JAM |
53.13 (3 h1) |
53.26 (8 F) |
||
| 9 | Josiane Tito |  BRA |
53.18 (4 h2) |
— | ||
| 10 | Geisa Coutinho | BRA |
53.23 (3 h3) |
— | ||
| 11 | Patricia Rodríguez |  COL |
53.41 (4 h3) |
— | ||
| 12 | Mayra Marcela González | MEX |
53.53 (5 h3) |
— | ||
| 13 | Adia McKinnon |  TTO |
54.24 (4 h1) |
— | ||
| 14 | Clara Hernández | DOM |
55.22 (5 h2) |
— | ||
| 15 | Jackie-Ann Morain | GRN |
56.30 (5 h1) |
— | ||
| 16 | Mirtha Brock | COL |
1:01.79 (6 h1) |
— | ||
| DNF | Eliana Pacheco |  VEN |
— (DNF h3) |
— | ||
| DNS | Tonique Williams-DarlingDNS |  BAH |
— (DNS h2) |
— |
Round 1
Heat 1
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 1 | Ana Guevara | MEX |
52.22 | |
| 2 | Me'Lisa Barber | USA |
52.62 | |
| 3 | Michelle Burgher | JAM |
53.13 | |
| 4 | Adia McKinnon | TTO |
54.24 | |
| 5 | Jackie-Ann Morain | GRN |
56.30 | |
| 6 | Mirtha Brock | COL |
1:01.79 |
Heat 2
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 1 | Hazel-Ann Regis | GRN |
52.21 | |
| 2 | Moushaumi Robinson | USA |
52.23 | |
| 3 | Libania Grenot | CUB |
52.37 | |
| 4 | Josiane Tito | BRA |
53.18 | |
| 5 | Clara Hernández | DOM |
55.22 | |
| DNS | Tonique Williams-DarlingDNS | BAH |
— |
Heat 3
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 1 | Aliann Pompey | GUY |
52.23 | |
| 2 | Novlene Williams-Mills | JAM |
52.76 | |
| 3 | Geisa Coutinho | BRA |
53.23 | |
| 4 | Patricia Rodríguez | COL |
53.41 | |
| 5 | Mayra Marcela González | MEX |
53.53 | |
| DNF | Eliana Pacheco | VEN |
— |
Final
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 1 | Ana Guevara | MEX |
50.36 | |
| 2 | Hazel-Ann Regis | GRN |
51.56 | |
| 3 | Aliann Pompey | GUY |
52.06 | |
| 4 | Libania Grenot | CUB |
52.23 | |
| 5 | Me'Lisa Barber | USA |
52.53 | |
| 6 | Novlene Williams-Mills | JAM |
52.83 | |
| 7 | Moushaumi Robinson | USA |
52.96 | |
| 8 | Michelle Burgher | JAM |
53.26 |